Mining and loading machine.



N. D. LEVINW MINING AND LOADING MACHINE.

APPLICATION FILED AUG. `1:19'13.

' Patented Jan. 7', 1919.

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MINING AND LOADING MACHINE.

APPLICATION FILED AUG. 1.1913.

N. D. LEVIN.

MINING AND LOADING MACHINE.

' APPLICATION FILED AuG.I. 1913. A 1,290,591. Patented Jan. 7,1919

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`N. D. LEVIN.

MINING AND LOADING MACHINE.

APPLICATION FILED AUG.I.

9 Patented Jn.7,1919.

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PATENT zoFFron.

NILs D. LEVIN, `QF coLUMnUs, 91110, ASSIGNOR fro THF JEFFREY MANUFACTURING COMPANY., OF V(I OlZvUIVIvBU'eS, OHIO, ACORPORATIONOF OHIO.

Application `led August -1,

'.To all `whom z't may concern:

Beit known .that le, Nus D. LnvrN, a citizen of ,the .United States, residing at Columbus, in the county of Franklin and State `,of VEOhiO, have invented certain new and useful Improvements in Mining and Loading Machines, of which lthe following' is a specication, lreference being had -therein to the accompanying drawings- This invention ,frelates to improvements4 in mining Vmachinesfof the class in which each is adapted to-fo'rm janA undercut in the coal, Vand lto Vform two vertical .shearing cuts,

formed byjsuch cuts and carry away the 4coal that is dislodged and deliver it to a leading apparatus- Y The object of ythe invention vis to provide chain cutters which will not only form a rectangular 4kerf yat the bottom of Vthe coal but will also :serve as a Vbackwardly acting `conveyer -to positively engage with and liforcze'tlie dislodged coal over a long distance :back from the kerf to the main conveyer;

also to provide `an improved mechanism for .driving horizontal chain cuttersand vertical chain cutters at the front end ofa relatively elongated carriage; and also `'to arrange a conveyer land power transmitting mechanism-in vsuch .a lway `that Zlarge 'blocks or .'Vmasses of coal can be taken backward and zupward without-impedance from shafting,

gearing, or any of the parts of .the mechanism. Y y

In the 4accompanying drawings which show .one embodiment .of -my invention,

Figure 1 vis al side .elevation of the front Palit 0f lthe machine; s Fig. :2 -jis a side elevation of that lpart `of the machine where are .located the' 'motor and @the .prime power .transmitting Vgearing and lalso `the forward end `of the .car-loading eenveyer; f

F'g. 3 is aplan view of .the front part of the machine; and

Fig. 4 yis a plan -view yof .the :parts shown in Fi 1 A2. Rerrng te .the drawings '1 represents a .bed trame 'Ordepanedevted te rest directly linien the lfloewf a ninreeeir or. entry -in which the ,machine ijs 'beingwoprated1\lt is Vprovided v'with sidewalls 1?.- #.betweelf Specification of Letters 'Patent v moves in a suitable guide on the Patented Jan. 7, 1919.

1913. senarmrsarzl. I

which the v,main Vframe or carriage of the machine `is yguided .for Vforward and 'back-A ward movement with respect tothe pan.

The main frame vis indicated as awhole .by .2 'and .can be 'formed in any provided way, vas'for instance by suitably connecting together several cast and rolled parts. Mounted at the forward end vof thel .main

frame at opposite sides thereof aregtwo horizontal cutter heads 3-'3 `and two vertical cutter heads 4-4. Each cutter head 3 compis'es a plate 5 vwhich is'rigidly connected to the main frame,and a fchain' Gwhieh periphery of the plate, and which passes .over a sprocket wheel 7 mounted on a vertical shaft `8. rPhe two chains 6-6 are arranged to @be driven in opposite directions, as indicated in Fig. 3.

Each ofthe ycutter heads His-provided i.

with .a vertical -plate 9 .which is rigidly Secured to the main frame, and a chain 10 which lpasses around. the plate and 4 over a sprocket wheel 11 mounted on ashort horizon-tal shaft 12. The chain 110 is of `special construction `and each second llink is .providedwwith guide wings 1'3 which overlap :the sides ofthe vplate and serve to hold the -chain against displacement. The cutters 14 ofthe' e chain l are `held in place by wedges 1 5.

The `plates 5'and 9 .at each side of lthe `machine lare connected vto the main 4frame Lor `carriage .by means of a lbracket casting- 16 and the forward surfaces ofthe wtwocastings .are inclined inward to-form. guides for the .coal which is caught 'between them. Each of the brackets 716 is vprovided with .a fbearing L7 for the `correspondingr 'horizontal shaft 12, and a Vbearing for-the .corresponding vertical sha-ft y8. These two shafts are connected together for simultaneous rotation yby vmeansl of bevel ears 18 and '19. Mounted 'upon the shagft '12 is va. sprocket wheellEOover which passes a chain 21. At

.the rear jthe `chains 21-21 at opposite sides of `the machine pass `over sprocket wheels -22m011l1ted on a transverse -shaft.23. This `shaft 23gcarries atl one -end a large spurgear 24 :which meshes with a pinion 25 on ,the armature shaft of an .electric motor :26. It will be `clear .that when the motor is rotated `pe-wer will be .transmitted through ,the

mechanism which has been described to drive the chains of both horizontal cutter heads, and both vertical cutter heads.

27 is a puncher mechanism which is mounted on the transverse shaft 28 by means of arms 29-29. The details of this mechanism have not been shown for the reason that they constitute no part of my present invention, and it is sufiieient to say that a puncher of any of the forms now known may be used. The pilncher carriesvat its forward end a transverse bar 30 in which are mounted picks 31-31. The puncher receives its power by means of the connecting` rod 32 which is mounted at its rear end on the cranked part 33 of the shaft 28. This shaft 28 carries a spur gear 34 which meshes with a pinion 35 on the shaft 23. The shaft 35 carries a gear 35b which meshes with a pinion 35c -on the shaft 23. In this way power is transmitted from the main drive shaft to drive the puncher.

Mounted on the sides of the main fra'ine of the puncher are bearings 36 and 37, and in these bearings there is mounted a shaft 38. Within 'the bearing 37 there is mounted a rotatable sleeve which surrounds the shaft 38, and which carries at its rear end a bevel gear 39 and at its forward end one element of a friction clutch 40. The bevel gear 39 meshes with a bevel gear 41 mounted on the shaft 28. A hand lever 42 is provided for throwing the clutch 40 into or out of engagement, thus connectingor disconnecting the shaft 38- and the drive gear 39. The shaft 38 carries at its forward end a gear wheel 43 which meshes with a curved rack 44 mounted on the main frame. It will be clear that by turning the shaft 38 and the wheel 43 the whole puncher mechanism can be raised or lowered. This raising or lowering can be controlled by means of the hand lever 42 and Ithe clutch 40. At 45 there is provided a clip which engages with a suitable guide secured to the rack, thus serving to hold the puncher-lnechanism against lateral movement.

The piek carrying frames are very heavy, and diiculty has been experienced in so arranging the'various parts of the machine as to sustain the front end of this frame with rigidity and firmness; and much power is required to adjust it vertically, as the power devices for this purpose have been applied at points near the hinge of the pick frame. l

To obviate these difficulties, I have combined with the frame the devices that have been described which engage with it at points near its front end, and I extend power-transmitting devices from the rear end of the carriage forward to these means which sustain the pick frame.

For removing the material loosened by the cutter chains and by the piek mechanism,

l proizlde a eonveyer whichissinilar to l cient to point out that it comprises a series of horizontal flights 46 mounted upon an endless drive and carrier chain 47. A suitable guidcway is provided for the chain, and a suitable supporting trough with side walls is provided for the iiights. The trough and chain guides are so arranged that the conveyer at its forward end lies substantially `in the central horizontal plane of the horizontal cutter heads. and at its rear end lies in a relatively elevated horizontal plane. The Chain 47 passes at the rear around a sprocket wheel 48 on a vertical shaft 49. This shaft 49 carries a bevel gear wheel 50 which meshes with a bevel pinion 51 on a longitudinal shaft 52. At the forward end of the shaft 52 is a bevel gear 53 meshing A with a bevel gear 54 on the main drive shaft 23. In this way power is transmitted to drive the conveyor. 55 is a brush mounted at the rear end ofthe eonveyer and arranged to remove material from the flights 46 vas they pass it.

The motor, it will be seen, is at the bottomr of the mechanism on the lower part of the carriage frame. All of the initial shafting and gearing are so positioned that ythere is an unobstructed space above the active partof the conveyer: that is to say, above it there are no over-lying gears or shafts. The active side of the conveyer and its trough are above the motor and all of the.

continues until the conveyer elements are successively loaded.

The reeeivngfend of a vsecondary conm veyer is indicated in, Figs. 2 and 4. This end is mounted on the carriage frame by means of a turn table 57, above which is the hopper 66. into which the material is delivered from the first conveyer. This sccondary conveyer is intended to have itsdelivery end so arranged thatl the coal carried by` it can be discharged into a car.

For feeding the main part ot' the machine forward and backward with respect te the bed frame provide the two horizontal winding drums 68 and 69, which are loosely 4mounted on transverse shafts 70 and 71.

4shaft 71 at a much slower speed. 76 and 77 are clutches controlled respectively by the hand levers 78 and 79 for connecting the drums 68 and 69 to the shafts 70 and'71. Wound upon the shaft 68 is a flexible cable :80 which extends rearward and is connected "at its end to the bed frame l. Wound upon the drum 69 is a flexible cable 81 which extends fonward and is connected at its end to the bed frame 1. From the foregoing description it will be clear that the operator by means of the lever 79 can throw in the clutch 77 and cause the drum 69 to turn. As the drum 69 turns at a relatively slow speed the cable'81 is wound and the machine is pulled slowly forward with respect to the bed frame. The operator by releasing the clutch 77 and throwing in the clutch 76 can cause the cable 80 to be wound at a relatively high speed, thus causing the machine to be pulled backward relatively rapidly.

The operation of the machine 'will now be readily understood. The machine is first put in place with the front cutters adjacent a coal face. The bed frame 1 is secured against movement by means. of suitable jacks or other devices, and the motor 26 is started thus causing the movement of the cutter chains. The operator throws in the clutch 77, and thus causes the cutting mechanism tobe slowly advanced into the coal, a horizontal undercut being formed and two parallel vertical shear cuts. As soon as the cutter mechanisms have advanced a little way into the coal the puncher 27 is brought into use, and the operator by means of the clutch 40can slo'wly oscillate this up and down to cause the coal to be loosened and broken down into the path of theconveyer. As the machine advances the loosened coal is forced backward between the inclined :walls of the castings 16-16 and is picked up by the convcyer flights 46-46 and carried backward and upward and discharged into the hopper 66. From the hopper 66 the coal is carried Aby the belt. 58 upward and backward and It will be understood deposited n a car. that the rear and of the second vconveyer can be swung to ont` side or the other in order that it may be brought over the car which is to receive the material.

The partsof the apparatus are so arranged that the undercutters carry the coal thrown in, thus causing the cutting mecha-A nism to be retracted. The machine asa whole can then be moved to a new position byany suitable means, and the operation above described canbe repeated.

What I claim as my invention is:

1. The combination of the bed trame, the lsliding carriage, the power devices at the rear endot the carriage, the brackets secured tothe front end 0f the carriage frame one on each side of the machine, the horizontally' arranged chain guiding plates se* cured to the brackets, the vertically arranged chain guiding plates secured to said brackets, the two oppositely moving cutter chains fitted to and guided by the horizontal plates,

the cutter chains fitted to and guided by the Y vertical plates, the relatively short shafts, one on each side of the machine and mounted in the said brackets, each operatively connected to a vertical cutter chain and to a horizontal cutter chain, and two sets of driving devices at the sides of the machine respectively connected to the said shafts and to the power devices at the rear of the carriage.

2. The combination of the bed frame, the

sliding carriage, the brackets secured to the front end of the carriage, one on each eide' of the machine, the horizontally arranged chain guiding plates secured to the brackets the vertically arranged chain A respectively, guiding plates secured to the brackets, the oppositely moving horizontally arranged cutter chains fitted "to the said horizont-al plates, the vertically arranged cutter chains fitted to the said vertical 'guide plates,l and A the conveyer having its receiving patina/iu the bottom horizontal planes of the front part ofy the carriage, the horizontal chains being arranged to have the outwardly moving parts travel on straight lines diverging backward and outward and adapted to-orce the coal backward to the conveycr.

In testimony whereof I affix my signature in presence of two witnesses.

NILS D- LEVIN. Witnesses:

E. P. SNrvELY, F. C. Cosco. 

